CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 427 · 40 questions

Code tip (Dot for class, hash for id): p matches every <p>; .note matches class="note"; #top matches id="top". A dot means class, a hash means id — mixing them up matches nothing. Many elements can share a class; an id belongs to only one element.

1. 1.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="intro">Hello</h2> (a) h2 (b) .note (c) li (d) #main
2. 2.🎯 Which CSS selector matches this element?
   <li class="big" id="top">Hello</li> (a) .top (b) div (c) li (d) .red
3. 3.🎯 Which CSS selector matches this element?
   <span class="note" id="intro">Hello</span> (a) #intro (b) #note (c) .intro (d) .big
4. 4.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
5. 5.🎯 Which element does the selector #logo style? (a) <div class="big"> (b) <li id="logo"> (c) <li id="end"> (d) <li class="logo">
6. 6.🎯 Which element does the selector .menu style? (a) <span class="menu"> (b) <span class="note"> (c) <span id="menu"> (d) <p class="big">
7. 7.🎯 Which element does the selector span style? (a) <h2 id="logo"> (b) <h1 class="red"> (c) <span class="red"> (d) <p>
8. 8.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
9. 9.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="menu"> (c) <h2 class="menu"> (d) <span id="hero">
11. 11.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) div (b) #big (c) .hero (d) span
12. 12.🎯 Which CSS selector matches this element?
    <h1 class="note" id="main">Hello</h1> (a) #main (b) #logo (c) .main (d) h2
13. 13.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
14. 14.True or false: #main is an element selector. (a) True (b) False
15. 15.🎯 Can many elements share the same class? (a) No (b) Yes
16. 16.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
17. 17.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
18. 18.🎯 Which element does the selector #logo style? (a) <h1 class="star"> (b) <p id="logo"> (c) <p id="end"> (d) <p class="logo">
19. 19.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
20. 20.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <p class="box"> (c) <div class="box"> (d) <span>
21. 21.True or false: #top is an id selector. (a) True (b) False
22. 22.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
23. 23.🎯 Which element does the selector .box style? (a) <li class="star"> (b) <li id="box"> (c) <div class="menu"> (d) <li class="box">
24. 24.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <div id="end"> (c) <span class="big"> (d) <div class="logo">
25. 25.True or false: .menu is an element selector. (a) False (b) True
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="box" id="main">Hello</h2> (a) .star (b) .main (c) #logo (d) h2
27. 27.True or false: .big is a class selector. (a) True (b) False
28. 28.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
29. 29.🎯 Which element does the selector .note style? (a) <p id="note"> (b) <p class="note"> (c) <h1 class="red"> (d) <p class="big">
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .top (b) #intro (c) #top (d) #menu
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="logo">Hello</h2> (a) .menu (b) #menu (c) .logo (d) #end
32. 32.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) .menu (b) span (c) .note (d) #menu
33. 33.🎯 Which element does the selector .star style? (a) <span class="menu"> (b) <p class="note"> (c) <span id="star"> (d) <span class="star">
34. 34.🎯 Which element does the selector .note style? (a) <div id="note"> (b) <div class="note"> (c) <div class="big"> (d) <span class="red">
35. 35.True or false: h1 is a class selector. (a) True (b) False
36. 36.True or false: .note is a class selector. (a) False (b) True
37. 37.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) #main (b) .intro (c) .star (d) .menu
39. 39.True or false: #end is an id selector. (a) False (b) True
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) h2 (b) #intro (c) #main (d) #note

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